| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.servicecomb.edge.core; |
| |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.concurrent.CompletableFuture; |
| |
| import javax.annotation.Nonnull; |
| |
| import org.apache.servicecomb.common.rest.filter.inner.RestServerCodecFilter; |
| import org.apache.servicecomb.core.Invocation; |
| import org.apache.servicecomb.core.filter.FilterNode; |
| import org.apache.servicecomb.swagger.invocation.InvocationType; |
| import org.apache.servicecomb.swagger.invocation.Response; |
| import org.apache.servicecomb.swagger.invocation.context.TransportContext; |
| import org.springframework.stereotype.Component; |
| |
| @Component |
| public class EdgeServerCodecFilter extends RestServerCodecFilter { |
| public static final String NAME = "edge-server-codec"; |
| |
| @Nonnull |
| @Override |
| public String getName() { |
| return NAME; |
| } |
| |
| @Nonnull |
| @Override |
| public List<InvocationType> getInvocationTypes() { |
| return Collections.singletonList(InvocationType.CONSUMER); |
| } |
| |
| @Override |
| public CompletableFuture<Response> onFilter(Invocation invocation, FilterNode nextNode) { |
| if (invocation.getRequestEx() == null) { |
| // to support normal consumer invocation in edge process |
| return nextNode.onFilter(invocation); |
| } |
| |
| return super.onFilter(invocation, nextNode); |
| } |
| |
| // save and restore transportContext to support edge invocation |
| @Override |
| protected CompletableFuture<Response> invokeNext(Invocation invocation, FilterNode nextNode) { |
| TransportContext transportContext = invocation.getTransportContext(); |
| return nextNode.onFilter(invocation) |
| .whenComplete((r, e) -> invocation.setTransportContext(transportContext)); |
| } |
| } |